Fabrication and Photonic Band Gap Property of Silica Colloidal Crystals

Journal of Inorganic Materials

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Fabrication and Photonic Band Gap Property of Silica Colloidal Crystals

KUAI Su-Lan; ZHANG Yu-Zhi; HU Xing-Fang

Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China

Received:2001-01-11 Revised:2001-02-19 Published:2002-01-20 Online:2002-01-20

Abstract

Abstract: Two kinds of silica colloidal crystals were fabricated by the self-assembly of mono- disperse silica particles. Optical microscope images show that the samples axe polycrystalline. Transmission measurements show the existence of photonic band gaps, and the center of which is strongly determined by the size of the colloidal spheres. With aging-time increasing the photonic band gap shifts considerably towards shorter wavelength.

Key words: silica colloidal spheres, colloidal crystals, photonic band-gap

CLC Number:

O734

KUAI Su-Lan,ZHANG Yu-Zhi,HU Xing-Fang. Fabrication and Photonic Band Gap Property of Silica Colloidal Crystals[J]. Journal of Inorganic Materials.

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Fabrication and Photonic Band Gap Property of Silica Colloidal Crystals

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